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From Jim Jagielski <...@jaguNET.com>
Subject Re: [PATCH] NT cleanup
Date Mon, 16 Jun 1997 18:56:11 GMT
Dean Gaudet wrote:
> 
> On Mon, 16 Jun 1997, Jim Jagielski wrote:
> 
> > Ben Laurie wrote:
> > > 
> > > Jim Jagielski wrote:
> > > > Oh yeah... nt/multithread.c does the right thing with respect
> > > > to these functions.
> > > 
> > > Yeah, the snag is that using those cause an unnecessary call/return, with
> > > associated performance penalty - which has been condemned in the past.
> > 
> > Hmmm... But most good optimizing compilers should take care of that,
> > shouldn't they?
> 
> When the word "global" is used in "global optimizating compiler" it
> actually refers to a compiler that optimizes across multiple blocks
> of code within a single function (a block of code is a sequence of
> instructions that is entered at the top, and leaves only at the bottom).
> I don't think there are standard terms for a compiler which optimizes
> across function boundaries within a file.  There are also very few
> compilers to optimize across files (you have to do these optimizations
> in the linking stage actually).  So the above won't be caught.
> 

Yep, you're right... 

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      Jim Jagielski            |       jaguNET Access Services
     jim@jaguNET.com           |       http://www.jaguNET.com/
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